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S4359146
9-6. Connection with Other Equipments
2055_M_I
ON/OFF
Digital input
Alarm
Output common
CPEV
AWG#16
ALL ON (+)
CX
TX
ALL OFF (+)
Input common
COM
+24
CPEV
AWG#16
NameDigital input/output terminals
Input/output item
Control input Status output
ON/OFF output
Alarm output
Potential tree
A contact, static
(relay output)
Wire length:
less than 330 ft.
Input/output
System controller Equipment
Input/outputTerminal Terminal Example
All ON input
All OFF input
Pulse (photo
compler input)
Contact capacity
DC 24V, 10mA
Pulse width:
more than
984 ft./sec.
Wire length:
less than 330 ft.
Contact capacity
DC 30V, 0.5A
9-7. Memory Back Up Switch
Check the back up switch is ON for back side of PCB
by system controller.
2056_M_I
Back up switch
ON OFF
Back up battery
9-8. Test Run
(1) Power on for all indoor units. Next, power on for
system controller.
will flash, checking the indoor unit address
automatically.
(2) If group No. displayed on system controller is not
same as indoor unit No.* which is connected, see
Fig. 9-5 and setting again.
*In case of group control, main unit No. only.